Designed by John Browning, the Model 1911 was the standard-issue side arm for the United States armed forces from 1911 to 1985 and is still carried by some U.S. forces today. The Model 1911's longevity is due to Browning's often-imitated design, which incorporates the short recoil principle. The M1911 is a single-action, semi-automatic, magazine-fed, and recoil-operated handgun chambered for the .45 ACP cartridge. During World War II, with Colt unable to keep up with the US military's high demand for the firearm, other manufacturers were commissioned to make the 1911, including firearms and typewriter manufacturer Remington Rand. The 1911A1 differs from the original version of the 1911 in that it has a shorter trigger, cutouts in the frame behind the trigger, an arched mainspring housing, a longer grip safety spur to prevent hammer bite, a wider front sight, a shorter spur on the hammer, and simplified grip checkering by eliminating the double diamond reliefs. This military pistol features fixed sights and synthetic grips. Its grips and bore are in good condition. Its metal is in fair condition.